If you are hunting for a laptop with a huge display, then this SpaceBook might interest you. It claims to be the world’s first dual-screen laptop with two 15.4-inch displays which can slide away easily to one screen for packing and carrying around. It will be available this December at US$3,000.

The pioneering PC, known as the Spacebook, is the brainchild of Alaska-based technology firm gScreen. While growing numbers of office workers – especially in the financial industries – use several desktop monitors to track many programmes and information sources at the same time, no manufacturer has yet released a portable equivalent.

The gScreen Spacebook will boast two 15.4 in screens which can slide away to fill the space of a single screen when the laptop is being stored or transported. The first photos of the pioneering gadget have been obtained by Gizmodo, the US technology website. Gordon Stewart, the founder of gScreen, told the website that the first Spacebooks should be available on Amazon by December this year, once final modifications are complete.

“We designed this knowing that many may not need the extra screen at all times,” he said.

The dual-screen laptop is aimed at professional video editors, photographers and designers who need to flick between different applications to carry out their work.

But anyone willing to meet the expected $3,000 (£1,835) price tag should be warned that the double screen is likely to push the weight of the Spacebook significantly above standard laptops. The energy demands of running two monitors will also prove a drain on the computer’s batteries.

Other technology firms have produced laptops with smaller bolt-on second screens, but this is believed to be the first model with twin monitors of equal size.